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CAS No. : | 23235-01-0 | MDL No. : | |
Formula : | C5H7NO2 | Boiling Point : | - |
Linear Structure Formula : | HCCCH2CH(NH2)COOH | InChI Key : | - |
M.W : | 113.11 | Pubchem ID : | - |
Synonyms : |
|
Chemical Name : | (S)-2-Aminopent-4-ynoic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With piperidine; In N,N-dimethyl-formamide; at 20℃; for 0.5h; | Fmoc-protected propargyl glycine (200mg) was dissolved in 20mL of piperidine/DMF solution (1:4). Reaction was stirred for 30min at room temperature. The volume was reduced by rotary evaporation and 25mL of cold ether was added to precipitate the amino acid. The suspended mixture was centrifuged at 4000rpm at 4C for 10min and washed twice with cold ether (10mL×2). The amino acid was loaded onto a C18 cartridge for flash purification (ACN/H2O). 1H NMR (D2O, 400MHz): delta 3.89 (t, 1H, J=5.4Hz), 2.87-2.81 (m, 2H,), 2.52 (t, 1H, J=2.6Hz). 13C NMR (D2O, 101MHz): delta 172.7, 77.5, 73.4, 52.8, 20.4.HRMS (ESI) calculated (M-H) 112.0404, found 112.0415. |
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